by Maddie Stone, Grist
Electric vehicles (EVs) have a clear environmental advantage over their gas-guzzling counterparts, but when it comes to longevity, the two are in a dead heat. Two hundred thousand miles is considered a good, long run for a car built today, regardless of whether it’s powered by a lithium battery or an internal combustion engine. But if a flurry of recent reports are to be believed, EVs may soon surge ahead in this long-distance competition — not by mere thousands of miles, but by 800,000.
Recently, multiple EV battery makers have announced the imminent arrival of “million-mile” batteries, power packs that supposedly have enough juice to be driven to the moon and back twice. In May, a top executive at General Motors said the company was “almost there” on development of a million-mile battery; in June, Chinese battery maker Contemporary Amperex Technology Co. Ltd. (CATL) told Bloomberg it was ready to produce batteries that last 1.24 million miles. For months, rumors have swirled that Tesla will soon roll out a million-mile battery on its own. Its 2019 Impact Report, released in early June, certainly reinforced that impression when it emphasized the environmental advantages of a “future Tesla vehicle with a million mile battery.”
But what does the million-mile battery revolution actually mean? According to experts in battery storage technology and the EV market, claims of new batteries that will last a million miles don’t tell us much on their own. How these batteries can be used is going to depend, first and foremost, on how they perform and degrade over their so-called “million-mile” lifespan. Several experts pointed out that true million-mile batteries are likely to outlast whatever cars they’re built for, meaning their arrival could dramatically impact both second-use markets and battery recycling.
“What they’re talking about with million-mile batteries is not so much that an average consumer would put a million miles on the clock,” said Simon Lambert, a co-lead investigator at the Recycling of Lithium-Ion Batteries project (ReLiB) at the UK’s Faraday Institution, “but that you’d potentially be able to use the battery multiple times, either in vehicular energy storage or grid-connected stuff.”
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